Re: Problem with Eigenvalues[A]
- To: mathgroup@smc.vnet.net
- Subject: [mg12151] Re: Problem with Eigenvalues[A]
- From: dreissNOSPAM@nospam.earthlink.net (David Reiss)
- Date: Mon, 27 Apr 1998 01:46:34 -0400
- Organization: EarthLink Network, Inc.
- References: <6hpf2v$deg@smc.vnet.net>
In article <6hpf2v$deg@smc.vnet.net>, "JNicolau"
<nop60190@mail.telepac.pt> wrote:
> I don't understand what is the problem with
>
> A={{a,0},{0,b}};
> Eigenvalues[A];
>
> in the Mathematica 2.2 as I always have the message
>
> Eigenvectors::eival: Unable to find all roots of the characteristic
> polynomial.
>
> I don't have the same problem with the Mathematica 2.0. I'd appreciate
> if someone could tell me how I can solve this problem.
>
>
> thank you all
>
> Joco Nicolau
In Mathematica 2.2 I find,
In[1]:= A={{a,0},{0,b}}
Out[1]= {{a, 0}, {0, b}}
In[2]:= Eigenvalues[A]
Out[2]= {a, b}
With no error messages.
--David
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David Reiss
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